Every .bzl file must have a corresponding package, but X does not have one

Description of the problem / feature request:

Twice in the last two days when returning to rebuild a Bazel project, I’ve seen an error about it being unable to find the .bzl file for rules_cc rules. I think this has to do with the implicit loading of rules_cc by Bazel, as you’ll notice that nowhere is that file mentioned in the repository (https://sourcegraph.com/search?q=repo:^github\.com/google/llvm-bazel%24+“cc:defs.bzl”&patternType=regexp).

Bugs: what’s the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

As this is a non-deterministic thing, it’s a bit hard to reproduce. It seems to happen basically every time I fetch new commits in https://github.com/google/iree or https://github.com/google/llvm-bazel

What operating system are you running Bazel on?

Linux Debian

What’s the output of bazel info release?

Happens with Bazel 3.3.1 and 3.7.1

What’s the output of git remote get-url origin ; git rev-parse master ; git rev-parse HEAD ?

$ git remote get-url origin ; git rev-parse main ; git rev-parse HEAD
[e-mail]:GMNGeoffrey/llvm-bazel.git
e463a75a963dc583ef1ccc6122aceaaabd5b8e09
e463a75a963dc583ef1ccc6122aceaaabd5b8e09

Have you found anything relevant by searching the web?

No

[vnghia]

@GMNGeoffrey

Just add the strip_prefix will solve your problem.

And I think it is how bazel works indeed. If you don’t add strip_prefix, bazel will download the http_archive https://github.com/bazelbuild/bazel-skylib/releases/download/1.0.2/bazel-skylib-1.0.2.tar.gz to a folder named bazel-skylib-1.0.2. When you want to load something from that folder, you might have to do something like @bazel-skylib//bazel-skylib-1.0.2/....

What do you think ?

[GMNGeoffrey]

This happens to me just about every time I fetch new stuff from the repository at this point.